diff options
Diffstat (limited to 'gcc/config/cris/cris.h')
| -rw-r--r-- | gcc/config/cris/cris.h | 35 |
1 files changed, 23 insertions, 12 deletions
diff --git a/gcc/config/cris/cris.h b/gcc/config/cris/cris.h index 4d04ef869f3..1ab830e4d75 100644 --- a/gcc/config/cris/cris.h +++ b/gcc/config/cris/cris.h @@ -373,8 +373,8 @@ extern int cris_cpu_version; /* Node: Register Basics */ /* We count all 16 non-special registers, SRP, a faked argument - pointer register, MOF and CCR/DCCR. */ -#define FIRST_PSEUDO_REGISTER (16 + 1 + 1 + 1 + 1) + pointer register, MOF, CCR/DCCR, and the faked frame-pointer. */ +#define FIRST_PSEUDO_REGISTER (16 + 1 + 1 + 1 + 1 + 1) /* For CRIS, these are r15 (pc) and r14 (sp). Register r8 is used as a frame-pointer, but is not fixed. SRP is not included in general @@ -382,12 +382,12 @@ extern int cris_cpu_version; registers are fixed at the moment. The faked argument pointer register is fixed too. */ #define FIXED_REGISTERS \ - {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 1} + {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 1, 1} /* Register r9 is used for structure-address, r10-r13 for parameters, r10- for return values. */ #define CALL_USED_REGISTERS \ - {0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1} + {0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1} /* Node: Allocation Order */ @@ -410,7 +410,8 @@ extern int cris_cpu_version; Use struct-return address first, since very few functions use structure return values so it is likely to be available. */ #define REG_ALLOC_ORDER \ - {9, 13, 12, 11, 10, 0, 1, 2, 3, 4, 5, 6, 7, 8, 14, 15, 17, 16, 18, 19} + {9, 13, 12, 11, 10, 0, 1, 2, 3, 4, 5, 6, 7, 8, 14, 15, 17, 16, 18, 19, \ + 20} /* Node: Leaf Functions */ @@ -451,6 +452,9 @@ enum reg_class #define CRIS_SPECIAL_REGS_CONTENTS \ ((1 << CRIS_SRP_REGNUM) | (1 << CRIS_MOF_REGNUM) | (1 << CRIS_CC0_REGNUM)) +#define CRIS_FAKED_REGS_CONTENTS \ + ((1 << CRIS_AP_REGNUM) | (1 << CRIS_FP_REGNUM)) + /* Count in the faked argument register in GENERAL_REGS. Keep out SRP. */ #define REG_CLASS_CONTENTS \ { \ @@ -464,13 +468,13 @@ enum reg_class {CRIS_SPECIAL_REGS_CONTENTS}, \ {CRIS_SPECIAL_REGS_CONTENTS \ | (1 << CRIS_ACR_REGNUM)}, \ - {(0xffff | (1 << CRIS_AP_REGNUM)) \ + {(0xffff | CRIS_FAKED_REGS_CONTENTS) \ & ~(1 << CRIS_ACR_REGNUM)}, \ - {(0xffff | (1 << CRIS_AP_REGNUM) \ + {(0xffff | CRIS_FAKED_REGS_CONTENTS \ | CRIS_SPECIAL_REGS_CONTENTS) \ & ~(1 << CRIS_ACR_REGNUM)}, \ - {0xffff | (1 << CRIS_AP_REGNUM)}, \ - {0xffff | (1 << CRIS_AP_REGNUM) \ + {0xffff | CRIS_FAKED_REGS_CONTENTS}, \ + {0xffff | CRIS_FAKED_REGS_CONTENTS \ | CRIS_SPECIAL_REGS_CONTENTS} \ } @@ -493,8 +497,10 @@ enum reg_class allocation. */ #define REGNO_OK_FOR_BASE_P(REGNO) \ ((REGNO) <= CRIS_LAST_GENERAL_REGISTER \ + || (REGNO) == FRAME_POINTER_REGNUM \ || (REGNO) == ARG_POINTER_REGNUM \ || (unsigned) reg_renumber[REGNO] <= CRIS_LAST_GENERAL_REGISTER \ + || (unsigned) reg_renumber[REGNO] == FRAME_POINTER_REGNUM \ || (unsigned) reg_renumber[REGNO] == ARG_POINTER_REGNUM) /* See REGNO_OK_FOR_BASE_P. */ @@ -580,6 +586,9 @@ enum reg_class /* Register used for frame pointer. This is also the last of the saved registers, when a frame pointer is not used. */ +#define HARD_FRAME_POINTER_REGNUM CRIS_REAL_FP_REGNUM + +/* Faked register, is always eliminated to at least CRIS_REAL_FP_REGNUM. */ #define FRAME_POINTER_REGNUM CRIS_FP_REGNUM /* Faked register, is always eliminated. We need it to eliminate @@ -596,8 +605,9 @@ enum reg_class #define ELIMINABLE_REGS \ {{ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ - {ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM}, \ - {FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}} + {ARG_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}, \ + {FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ + {FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}} #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \ (OFFSET) = cris_initial_elimination_offset (FROM, TO) @@ -818,7 +828,8 @@ struct cum_args {int regs;}; #define REGISTER_NAMES \ {"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", \ - "r9", "r10", "r11", "r12", "r13", "sp", "pc", "srp", "mof", "faked_ap", "dccr"} + "r9", "r10", "r11", "r12", "r13", "sp", "pc", "srp", \ + "mof", "faked_ap", "dccr", "faked_fp"} #define ADDITIONAL_REGISTER_NAMES \ {{"r14", 14}, {"r15", 15}} |